OP here & back with an update. Both DD`s liked it quite a lot. DD 12 thought the section of the audio tour about the riot & guards being killed was too scary. Turned out they liked it more than I did. Would highly suggest early tour if not doing night. We were on second tour and got most of audio tour in before it started getting very crowded which kind of detracts from it. Overall, good decision to go and thanks to all who posted.